//==UserScript==
// @name         Hyper Accelerator Pro
// @namespace    hyperaccelerator
// @version      5.0
// @description  全平台智能混合加速解决方案
// @match        :///
// @grant        GMxmlhttpRequest
// @grant        GMsetValue
// @grant        GMgetValue
// @grant        GMregisterMenuCommand
// @grant        GMnotification
// @grant        GMgetResourceText
// @grant        GMaddStyle
// @connect      
// @require      https://cdnjs.cloudflare.com/ajax/libs/axios/1.3.4/axios.min.js
// @require      https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js
// @resource     nodes https://cdn.example.com/nodes.json
// ==/UserScript==

/ 技术限制声明：
1. 无法实现UDP层加速
2. 无法修改系统Hosts文件
3. 无法绕过网络运营商限制
/

// =============== 核心模块 ===============
class HyperAccelerator {
    constructor() {
        this.nodeSources = [
            'https://cdn.example.com/nodesv4.json',
            'https://mirror.example.net/publicnodes'
        ];
        this.serviceMap = {
            'github.com': 'github',
            'docker.io': 'docker',
            'hub.docker.com': 'docker',
            'steamcommunity.com': 'steam',
            'translate.googleapis.com': 'googletranslate'
        };
        this.init();
    }

    async init() {
        await this.loadNodes();
        this.initInterceptors();
        this.startHealthCheck();
        this.initUI();
    }

    // =============== 节点管理 ===============
    async loadNodes() {
        try {
            const localNodes = GMgetValue('cachednodes', []);
            const remoteNodes = await this.fetchRemoteNodes();
            this.nodes = this.mergeNodes(localNodes, remoteNodes);
            GMsetValue('cachednodes', this.nodes);
        } catch (error) {
            console.error('节点加载失败:', error);
        }
    }

    async fetchRemoteNodes() {
        const responses = await Promise.all(
            this.nodeSources.map(url = 
                axios.get(url, { timeout: 5000 })
                    .then(res = res.data)
                    .catch(() = null)
            )
        );
        return .compact(responses).flat();
    }

    mergeNodes(existing, newNodes) {
        return .uniqBy([...existing, ...newNodes], 'id');
    }

    // =============== 智能路由 ===============
    selectNode(serviceType) {
        return .sample(
            this.nodes.filter(n = 
                n.services.includes(serviceType) && 
                n.health  0.8
            )
        );
    }

    // =============== 协议处理 ===============
    rewriteRequest(url) {
        const service = this.detectService(url.hostname);
        if (!service) return url.href;

        const node = this.selectNode(service);
        if (!node) return url.href;

        return this.applyRoutingStrategy(url, node);
    }

    applyRoutingStrategy(originalUrl, node) {
        switch(node.type) {
            case 'mirror':
                return originalUrl.href.replace(originalUrl.host, node.endpoint);
            case 'proxy':
                return {node.endpoint}/proxy?target={encodeURIComponent(originalUrl.href)};
            case 'cdn':
                return originalUrl.href.replace(
                    /^(https?://)([^/]+)/, 
                    1{node.endpoint}
                );
            default:
                return originalUrl.href;
        }
    }

    // =============== 请求拦截 ===============
    initInterceptors() {
        // Fetch拦截
        const originalFetch = window.fetch;
        window.fetch = async (input, init) = {
            const url = this.rewriteRequest(new URL(input.url || input));
            return originalFetch(url, init);
        };

        // XHR拦截
        const originalOpen = XMLHttpRequest.prototype.open;
        XMLHttpRequest.prototype.open = function(method, url) {
            const newUrl = this.rewriteRequest(new URL(url));
            originalOpen.call(this, method, newUrl);
        };

        // WebSocket处理
        const originalWebSocket = window.WebSocket;
        window.WebSocket = function(url, protocols) {
            const newUrl = this.rewriteWebSocket(url);
            return new originalWebSocket(newUrl, protocols);
        };
    }

    rewriteWebSocket(url) {
        const service = this.detectService(new URL(url).hostname);
        const node = this.selectNode(service);
        return node?.wsEndpoint ? url.replace(/^wss?://([^/]+)/, node.wsEndpoint) : url;
    }

    // =============== 服务检测 ===============
    detectService(hostname) {
        return .findKey(this.serviceMap, (service, domain) = 
            hostname === domain || hostname.endsWith(.{domain})
        );
    }

    // =============== 状态监控 ===============
    startHealthCheck() {
        setInterval(() = {
            this.nodes.forEach(async node = {
                const latency = await this.testLatency(node);
                node.health = latency < 500 ? 1 : 0.5;
            });
        }, 300000);
    }

    async testLatency(node) {
        const start = Date.now();
        await axios.head(node.testUrl, { timeout: 2000 });
        return Date.now()  start;
    }

    // =============== 用户界面 ===============
    initUI() {
        const panel = document.createElement('div');
        GMaddStyle(
            hyperacceleratorpanel {
                position: fixed;
                bottom: 20px;
                right: 20px;
                background: rgba(0,0,0,0.9);
                color: fff;
                padding: 15px;
                borderradius: 8px;
                zindex: 999999;
                minwidth: 300px;
            }
        );
        panel.id = 'hyperacceleratorpanel';
        document.body.appendChild(panel);
        this.updateUI();
    }

    updateUI() {
        const panel = document.getElementById('hyperacceleratorpanel');
        panel.innerHTML = 
            <h3Hyper Accelerator Pro</h3
            <div可用节点: {this.nodes.length}</div
            <div当前服务: {this.detectService(window.location.hostname) || 'N/A'}</div
            <button onclick="location.reload()"应用设置</button
        ;
    }
}

// =============== 初始化 ===============
new HyperAccelerator();

// =============== 功能扩展 ===============
GMregisterMenuCommand("手动更新节点", () = {
    new HyperAccelerator().loadNodes();
});

GMregisterMenuCommand("显示诊断信息", () = {
    const info = .map(new HyperAccelerator().nodes, n = 
        {n.name}: {n.latency}ms
    ).join('n');
    GMnotification({ text: info });
});

扩展功能建议（达到1000+行）：

1. 增加协议优化模块：
javascript
class ProtocolOptimizer {
    optimizeHTTP2() {
        // 强制启用HTTP/2
    }

    enableQUIC() {
        // 实验性QUIC支持
    }
}

2. 添加流量分析模块：
javascript
class TrafficAnalyzer {
    constructor() {
        this.stats = {
            totalRequests: 0,
            savedBandwidth: 0
        };
    }

    trackRequest(request) {
        // 记录请求数据
    }

    generateReport() {
        // 生成优化报告
    }
}

3. 实现智能缓存系统：
javascript
class SmartCache {
    constructor() {
        this.cacheStore = new Map();
    }

    shouldCache(url) {
        // 判断是否可缓存
    }

    cacheResponse(url, response) {
        // 存储响应内容
    }
}